Vibrating screen



June 19, 1956 N, J, GLEISER Z,751,@8U

VIBRATING SCREEN Filed Feb. 15, 1954 w w z INVENTOR Nelson J. Gleiser ATTORNEYS United States Patent VIBRATING SCREEN Nelson J. Gleiser, Depew, N. Y., assignor to Screen Equipment Company, Inc., Cheektowaga, N. Y.

Application February 15, 1954, Serial N 0. 410,344

4 Claims. (Cl. 209-367) This invention relates to certain new and useful improvements in vibrating screens and particularly to screens of the unbalanced type.

It has for its primary object to provide a screen of this type which is so designed and constructed as to facilitate the mounting of the shaft assembly on and its removal from the screen body in a direction axially of the shaft and without disturbing the screen decks.

Another object of the invention is to provide simple, inexpensive and effective means for detachably securing the unbalanced shaft assembly to the side plates of the 2 screen body as well as to enable such assembly to be drawn out through openings in such side plates when it is desired to make repairs thereto or replace any of its parts.

Other features of the invention reside in the construction and arrangement of parts hereinafter described and particularly pointed out in the appended claims.

In the accompanying drawings:

Figure 1 is a side elevation of a vibrating screen embodying my invention.

Figure 2 is a transverse section taken substantially in the plane of line 22, Figure 1.

Figure 3 is an enlarged vertical section through one end of the shaft assembly mounting.

Similar characters of reference indicate corresponding parts throughout the several views.

Referring now to the drawings, indicates a gyratory screen body adapted to be yieldingly suspended from overhead or upon a supporting base, and 11 indicates generally the shaft assembly disposed transversely and centrally thereof or substantially at its center of gravity for imparting gyratory movement to such body. This shaft assembly includes a pulley 12 at one end for belt connection to an electric motor or other source of power.

The screen body includes side plates 13 having registering openings 14 therein through which the opposite ends of the shaft assembly extend and in which they are mounted, and in this connection I have so designed the mounting structure as to expedite and facilitate the insertion of the assembly in and its removal from the screen body through its openings without removing or disturbing the customary screen decks which may be above or below the shaft assembly.

The shaft assembly consists of a shaft indicated generally at 15 and having an eccentrically machined or offset central section 16 and axially alined end sections or journals 17 supported in self-alining bearings 18 encased in companion end housings 19. Each of the latter has an annular attaching flange 20 intermediate its ends for normal registration with the companion side plate opening 14- and free to be passed through such opening when removing the shaft assembly from the screen body. The eccentric section of the shaft is enclosed within a tube 21 terminating at its opposite ends in collars or housings 22 which extend about and enclose the opposing inner ends of the bearing-housings 19 and which have annular attaching flanges 23 thereon disposed in adjoining or side- 2,751,080 Patented June 19, 1956 wise relation to the housing-flanges 20 and of like diameter for ready passage through the side plate openings during insertion or removal of the shaft assembly. In order to effectually support each of the bearing ends of the shaft assembly in its companion side plate and axially of its openings 14, as well as to retain the complemental housings 19, 22 in detachably coupled relation and against relative axial displacement, a supporting member, preferably in the form of a ring 24, is detachably secured to the outer face of the side plate concentrically about the central opening thereof by a plurality of bolts 25. The inner periphery of this supporting ring partially overlaps or extends within the plate-opening sufliciently to be alined with and overlie the outer face of the bearing housing attaching flange 20, and bolts 26 are provided to effectually connect both housing-flanges 20, 23 to each other as well as to the ring.

Keyed to the opposite ends of the shaft 15 outwardly of the bearings 18 are counter-weighted flywheels 27 and the drive pulley 12 may be connected to one of such wheels, as shown. The diameter of each flywheel is somewhat less than that of the side plate openings 14 so as to permit the free passage thereof through such opening when inserting or withdrawing the shaft assembly to and from the screen body.

By this construction, the shaft assembly can be readily inserted into and withdrawn from the side plates in a minimum period of time and with a minimum of effort and without disturbing or necessitating the removal of the screen decks. In effecting the removal of the shaft assembly for repairs, servicing or replacement, for example, it is only necessary to disconnect one of the supporting rings 24 from its companion side plate by removing the bolts 25 and disconnecting the flange-engaging bolts 26 from the companion ring at the opposite end of the assembly.

I claim as my invention:

1. In a vibrating screen, a screen body having alined shaft-assembly openings in its opposite sides, a shaft assembly removably supported on said screen body and having external attaching members therein in register with said openings for axial passage therethrough, and supporting means for the shaft assembly applied to the outer sides of the screen body in intersecting relation to its openings and detachably connected to the outer sides of the attaching members of said shaft assembly.

2. In a vibrating screen, a screen body having alined shaft-assembly openings in its opposite sides, a shaft assembly removably supported on said screen body and including bearing housings for the shaft at its opposite ends having attaching means extending outwardly therefrom in the plane of said openings for axial passage therethrough, and combined supporting and attaching members for the shaft assembly removably applied to the outer sides of the screen body about its openings and in overlapping relation to and detachably secured to the outer sides of the attaching means of said bearing housings.

3. In a vibrating screen, a screen body having alined shaft-assembly openings in its opposite sides, a shaft assembly removably supported on said screen body and including bearing housings for the shaft at its opposite ends having external attaching flanges thereon in the plane of said openings for axial passage therethrough, and combined supporting and attaching rings removably applied to the outer sides of the screen body in overlapping concentric relation to the openings thereof and detachably secured to the outer sides of the flanges of said bearing housings.

4. In a vibrating screen, a screen body having alined shaft-assembly openings in its opposite sides and at substantially the center of gravity thereof, a shaft assembly supported on the screen body axially of its openings and adapted to be transversely displaced therethrough to an inserted or withdrawn position, said shaft assembly including a shaft having an eccentric control section and end journals, end bearing housings encasing said journals, 3. tube enclosing said central shaft section and terminating at its opposite ends in housings enclosing the opposing inner ends of said bearing housings, annular attaching flanges extending from said tube and bearing housings in side by side relation and of a diameter to freely pass through said screen body openings, and combined supporting and attaching rings removably applied to the outer sides of the screen body in overlapping concentric relation to the openings thereof and detachably secured as a unit to said housing-flanges.

References Cited in the file of this patent UNITED STATES PATENTS 2,292,327 Lincoln Aug. 4, 1942 

